Car-truck.



No. 778.841. PATENTED JAN. 3, 1905. W. P. BETTENDORP.

CAR TRUCK.

AYPLIOATION IILBD 16.93.21. 1904.

UNTTED STATES l Patented January 3, 1905.

PATENT OEETCE.

CAR-TRUCK.

SPECIFICATION forming' part of Letters Patent No. I778,841, datedJanuary 3, 1905.

Application filed March Z1, 1904. Serial No. 199,082.

1'0 @ZZ wwwb it may concern:

Be it known that I, WILLIAM P. BETTEN- DORF, a citizen of the UnitedStates, and a resident of Davenport, in the county of Scott and State ofIowa, have invented certain new and useful Improvements in Car-Trucks,of which the following is a full, clear, and exact description.

The object and purpose of my invention is to simplify the constructionof swing-motion car-trucks and to avoid the necessity of riveting theends of the spring-planks to the side frames of car-trucks, whether usedin connection with swing-motion trucks or otherwise, and make it an easymatter either to install said planks in place or remove the same.

This I accomplish by the means hereinafter fully described and asparticularly pointed out in the claims.

In the drawings, Figure l is a side view of a car-truck embodying myinvention. Fig. 2 is'a transverse vertical section taken on dotted line2 2, Fig. l. Fig. 3 is a similar section, on an enlarged scale, of oneside of a car-truck with the wheels omitted, embodying a modification ofmy invention. Fig. 4 is a detail View showing plans and edge views ofthe end portions of two forms of springplanks.

In the drawings, A represents the side frames of a car-truck, which are,including the journal-boxes, preferably cast or otherwise made'in onepiece or body of metal, substantially as described and illustrated inLetters Patent of the United States granted to me October 6, 1903, No.740,617. This construction, however, is not essential, as the commonerforms of side frames now in extensive use can, if desired, be employed.The ends of the bolstersB extend into and preferably through the centralopening C in each of the side frames, whose lower portions arepreferably wider than the upper portions thereof, and said ends aresupported by springs a a, whose lower ends are seated and supported onthe spring-seat L. The under sides of these spring-seats are providedwith two parallel transverse concave channels and rest upon two rollersc c, which latter are seated on the widened sill d of the opening C.

`ing thereon.

This sill Z is provided with concave channels corresponding to andopposite the channels in the under side of the spring-seat and is alsodepressed so as to leave in relief a central boss c: The ends of thespring-plank D, connecting these side frames, are preferably rounded andprovided with an openingf therein, which when the plank is being securedin position is slipped over the central boss e and rests snugly in thedepressed surface of the sill CZ, which depressed surface corresponds inarea and shape to the end of the plank rest- Now the rollers 0 o rest onand roll back and forth over the end of the springplank and keep it inplace, and these rollers are themselves retained in place by transverseridges g g,arising from the said sills at right angles to the rollers,that have their upper edges, in which the ends of the rollers rest,concaved.

The spring-plank D, hereinbefore described, is illustrated in the twouppermost views in Fig. 4. The spring-plank E (shown in the lowermostviews of this figure) embodies a modified construction of spring-plankD, inasmuch as its ends are made square, and instead of an openingsimilar tof recesses /L it are made in its opposite side edges near itsend. When spring-plank E is employed, the depressed seats therefor inthe sills of the central openings of the side frames are changed tocorrespond thereto.

In Fig. 8 of the drawings I show a modified construction of myinvention. In this modification the springs a a are dispensed with andthe bolster F has a bearing-plate Gr secured direct to the under side ofits end portions, and the under surface of this plate is provided withtwo parallel transverse concavities. The sill of the central opening ofthe side frames H of this modified construction is the same as thatillustrated in the first two figures of the drawings, and thespring-planks I thereof may be like either spring-planks E or D,(illustrated in Fig. 4,) and rollers J J are introduced between thebolster and sill and support the former.

If desired, the roller-side-bearing feature of my invention, either asshown in the first Atwo figures of the drawings or in Fig. 3, could bedispensed with and the springs supporting the ends of the bolster andthe spring-seat (providing one was employed) could rest upon the sill ofthe central opening of the side frame and hold the spring-plank inposition. All such changes I desire to lhave considered as part of myinvention.

What I claim as new is- 1. A ear-truck comprising side frames, eachhaving an opening therein mediate their ends, that have depressed seatsin their sills for the ends of the spring-plank; and said springplank,the ends of which rest and are seated in the depressions of said sillsand are removably interlocked therewith.

2. Acar-truck comprisingside frames, each having an opening thereinmediate their ends that have depressed seats in their sills for the endsof the spring-plank, which depressed seats have within the area lyingbetween the sides of said plank, portions in relief; and saidspring-plank, the ends of which rest in said depressed seats and haveportions thereof removed to accommodate the projection of the saidrelief portions of the depressed seats in the sills of the side frame.

3. A car-truck comprising side frames, each having an opening thereinmediate their ends, the sills of which are widened and provided withdepressed seats for the ends of the springplank and have a boss arisingfrom the central portion; and said spring-plank having its ends restingin said depressed seats and provided with an opening therein up intowhich said boss projects.

4. A car-truck comprising side frames, each having an opening thereinmediate their ends, that have depressed seats in their sills for theends of the spring-plank; said spring-plank, the ends of which rest andare seated in the depressions of said sills and are removablyinterlocked therewith; and a suitable truck-bolster the weight of whoseends is disposed above and keeps the ends of said spring-plankinterlocked with said sills.

5. A car-truck comprising side frames, each having an opening thereinmediate their ends that have depressed seats in their sills for the endsof the spring-plank, which depressed seats have within the area lyingbetween the sides of said plank, portions in relief; said spring-plank,the ends of which rest in said depressed seats and have portions thereofremoved to accommodate the projection of the said relief portions of thedepressed seats in the sills of the side frame; and a suitabletruckbolster the weight of whose ends is disposed above and keeps theends of said spring-plank interlocked with the sills.

6. A car-truck comprising side frames, each having an opening thereinmediate their ends, the sills of which are widened and provided withdepressed seats for the ends of the springplank and have a boss arisingfrom the central portion; said spring-plank having' its ends restinginsaid depressed seats and provided with an opening therein up into whichsaid boss projects; and a suitable truckebolster the weight of whoseends is disposed above and keeps the ends of said'spring-plankinterlocked with said sills.

7. A car-truck comprising side frames having an opening therein mediatetheir ends that have depressed seats in their sills for the ends of thespring-plank; said spring-plank the ends of which rest and are seated inthe depressions of said sills and removably interlock therewith, and asuitable swinging truck-bolster the weight of which is disposed aboveand confines the end of said plank.

8. A car-truck comprising side frames, each having an opening thereinmediate their ends; spring-planks, the ends of which rest upon the sillsof said openings; a truck-bolster; and bearing-rollers supporting theends of said bolster and rest upon and interlock the plank with saidsills.

9. A car-truck comprising side frames, each -having an'opening thereinmediate their ends;

spring-planks, the ends of which rest upon the sills of said openings; atruck-bolster; springs supporting the ends of said bolster; a suitable`spring-seat; and roller-bearings under said spring-seat that rest uponand interlock the plank with said sills.v

10. A car-truck comprising side frames, each having an opening thereinmediate their ends; spring-planks, the ends of which' rest upon thesills of said openings; a truck-bolster; springs supporting the ends ofsaid bolster; a suitable spring-seat; and roller-bearings under saidspring-seat that rest upon the ends of the plank above said sills andinterlock the' ends of said plank therewith.

1l. A cartruck comprising side frames each having an opening thereinmediate their ends, the lower portions of which are wider than the upperportions; spring-planks the ends of which rest upon the sills of saidopenings; a truck-bolster; and means for supporting and retaining saidbolster in the upper narrower portion of said openings that rest uponthe ends of said plank above said sill and interlock the same with thesills.

l2. AV ear-truck comprising side frames each having an opening thereinmediate their ends, the lower portions of which arewider than the upperportions; spring-planks the ends of which rest upon the sills of saidopenings; a truck-bolster; and springs for supporting and retaining saidbolster in the upper narrower portion of said openings that rest uponthe ends of said plank above said sill and interlock the same with thesills.

13. A car -truck comprising side frames having a central bolster-openingtherein the upper surface of the sill of which is provided with raisedportions, and a spring-plank the ends of which rest upon said sills andinterlock with the raised portions thereof.

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14. A car-truck comprising side frames having a central bolster-openingtherein the upper surface of the sill of which is provided with raisedportions mediate its ends, and a spring-plank the ends of which restupon said sills and interlock with the raised portions thereof.

15. A car-truck comprising side frames having a central bolster-openingtherein the upper surface of the widened sill of which is provided withraised portions several of which provide seats for the rollers ofroller-bearings, a spring-plank the ends of which rest upon andinterlock with said sills, bearingrollers, spring-seats sustainedthereby, bolster-springs and holsters, substantially as hereinbeforedescribed.

16. A car-truck comprising side frames, each having an opening thereinmediate their ends that are provided with transverse ridges;spring-planks, the ends of which rest upon the sills of said openings; atruck-bolster; and bearing-rollers supporting the ends of said bolsterand roll upon and interlock the plank with said sills.

17. A car-truck comprising side frames, each having an opening thereinmediate their ends that are provided with transverse ridges;spring-planks, the ends of which rest upon the sills of said openings; atruck-bolster; springs supporting the ends of said bolster; a suitablespring-seat; and roller-bearings under said spring-seat'that roll uponand interlock the plank with said sills.

18. A car-truck comprising side frames, each having an opening thereinmediate their ends that are provided with transverse ridges;spring-planks, the ends of which rest upon the sills of said openings; atruck-bolster; springs supporting the ends of said bolster; a suitablespring-seat; and roller-bearings under said spring-seat thatv roll uponthe ends of the plank above said sills and interlock the ends of saidplank therewith. V

19. A car truck comprising side frames each having an opening thereinmediate their ends that are provided with transverse ridges, the lowerportions of which are wider than the upper portions; spring-planks theends of which rest upon the sills of said openings; a truck-bolster; andmeans for supporting and retaining said bolster in the upper narrowerportion of said openings that rest upon the ends of said plank abovesaid sill and interlock the same with the sills.

20. A cartruck comprising side frames each having bolster-openingstherein mediate their ends that are provided with integral transverseridges thereon; a truck-bolster; and bearing-rollers supporting the endsof said bolster and have their ends resting and adapted to roll uponsaid ridges.

21. A car truck comprising side frames each having bolster-openingstherein mediate their ends that are provided with integral transverseconcave ridges thereon; a truckbolster; and hearing-rollers supportingthe ends of said bolster and have their ends resting and adapted to rollupon said ridges.

22. A car truck comprising side frames each having bolster-openingstherein mediate their ends that are provided with integral transverseridges thereon; a truck-bolster; springs supporting the same;spring-seats for said springs, and bearing-rollers under saidspring-seats that rest and roll Vupon said ridges. In testimony whereofI have hereunto set my hand this 29th day of February, 1904.

WILLIAM P. BETTENDORF. Witnesses;

E. K. LUNDY, FRANK D. THoMAsoN.

